7808edcd30
Add I/O based support for serial and parallel ports of the following chips: Vendor: Moschip (0x9710) Parts (device IDs) * 9900 (0x9900) * 9904 (0x9904 * 9901 (0x9912, also sold as 9912) * 9922 (0x9922) On all chips but the 9900, a single port is provided per PCI subdevice (subvendor-ID 0xA000, subdevice-IDs 0x1000 for serial, 0x2000 for parallel with proper class codes). In cascading configurations, the 9900 provides two devices per subdevice, with subvendor-ID 0xA000 and subdevice-IDs 0x30ps where p is the number of parallel ports and s the number of serial ports. Basic testing was only done on the serial part of a 9912 to the point where it can be used for a serial kernel console, and advanced features are completely untested. It is possible to reduce functionality of the chips by adding a configuration EEPROM, and the datasheet [1] is inconsistent w.r.t subdevices in the 4s+2s1p and 2s1p+4s configurations. The subdevice-ID 0x3012 should likely read 0x3011 with a serial port in function 3, which would be consistent with the BAR layouts. For now, the drivers ignore subdevices with ID 0x1000 and no class code. The parallel ports are integrated in parport_serial even for purely parallel parts to reduce the footprint of the patch. [1] http://www.moschip.com/data/products/MCS9900/MCS9900_Datasheet.pdf Signed-off-by: Nicos Gollan <gtdev@spearhead.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
520 lines
14 KiB
C
520 lines
14 KiB
C
/*
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* Support for common PCI multi-I/O cards (which is most of them)
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*
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* Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*
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* Multi-function PCI cards are supposed to present separate logical
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* devices on the bus. A common thing to do seems to be to just use
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* one logical device with lots of base address registers for both
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* parallel ports and serial ports. This driver is for dealing with
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* that.
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*
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/parport.h>
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#include <linux/parport_pc.h>
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#include <linux/8250_pci.h>
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enum parport_pc_pci_cards {
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titan_110l = 0,
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titan_210l,
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netmos_9xx5_combo,
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netmos_9855,
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netmos_9855_2p,
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netmos_9900,
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netmos_9900_2p,
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netmos_99xx_1p,
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avlab_1s1p,
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avlab_1s2p,
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avlab_2s1p,
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siig_1s1p_10x,
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siig_2s1p_10x,
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siig_2p1s_20x,
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siig_1s1p_20x,
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siig_2s1p_20x,
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};
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/* each element directly indexed from enum list, above */
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struct parport_pc_pci {
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int numports;
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struct { /* BAR (base address registers) numbers in the config
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space header */
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int lo;
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int hi; /* -1 if not there, >6 for offset-method (max
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BAR is 6) */
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} addr[4];
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/* If set, this is called immediately after pci_enable_device.
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* If it returns non-zero, no probing will take place and the
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* ports will not be used. */
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int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card,
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int autoirq, int autodma);
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/* If set, this is called after probing for ports. If 'failed'
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* is non-zero we couldn't use any of the ports. */
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void (*postinit_hook) (struct pci_dev *pdev,
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struct parport_pc_pci *card, int failed);
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};
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static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *par, int autoirq, int autodma)
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{
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/* the rule described below doesn't hold for this device */
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if (dev->device == PCI_DEVICE_ID_NETMOS_9835 &&
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dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
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dev->subsystem_device == 0x0299)
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return -ENODEV;
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if (dev->device == PCI_DEVICE_ID_NETMOS_9912) {
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par->numports = 1;
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} else {
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/*
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* Netmos uses the subdevice ID to indicate the number of parallel
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* and serial ports. The form is 0x00PS, where <P> is the number of
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* parallel ports and <S> is the number of serial ports.
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*/
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par->numports = (dev->subsystem_device & 0xf0) >> 4;
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if (par->numports > ARRAY_SIZE(par->addr))
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par->numports = ARRAY_SIZE(par->addr);
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}
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return 0;
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}
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static struct parport_pc_pci cards[] __devinitdata = {
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/* titan_110l */ { 1, { { 3, -1 }, } },
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/* titan_210l */ { 1, { { 3, -1 }, } },
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/* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
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/* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
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/* netmos_9855_2p */ { 2, { { 0, -1 }, { 2, -1 }, } },
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/* netmos_9900 */ {1, { { 3, 4 }, }, netmos_parallel_init },
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/* netmos_9900_2p */ {2, { { 0, 1 }, { 3, 4 }, } },
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/* netmos_99xx_1p */ {1, { { 0, 1 }, } },
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/* avlab_1s1p */ { 1, { { 1, 2}, } },
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/* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
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/* avlab_2s1p */ { 1, { { 2, 3}, } },
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/* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
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/* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
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/* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
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/* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
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/* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
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};
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static struct pci_device_id parport_serial_pci_tbl[] = {
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/* PCI cards */
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{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
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{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
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0x1000, 0x0020, 0, 0, netmos_9855_2p },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
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0x1000, 0x0022, 0, 0, netmos_9855_2p },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
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0xA000, 0x3011, 0, 0, netmos_9900 },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
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0xA000, 0x3012, 0, 0, netmos_9900 },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
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0xA000, 0x3020, 0, 0, netmos_9900_2p },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9912,
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0xA000, 0x2000, 0, 0, netmos_99xx_1p },
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/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
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{ PCI_VENDOR_ID_AFAVLAB, 0x2110,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2111,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2112,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2140,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2141,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2142,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2160,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2161,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
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{ PCI_VENDOR_ID_AFAVLAB, 0x2162,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ 0, } /* terminate list */
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};
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MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
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/*
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* This table describes the serial "geometry" of these boards. Any
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* quirks for these can be found in drivers/serial/8250_pci.c
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*
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* Cards not tested are marked n/t
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* If you have one of these cards and it works for you, please tell me..
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*/
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static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
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[titan_110l] = {
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.flags = FL_BASE1 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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[titan_210l] = {
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.flags = FL_BASE1 | FL_BASE_BARS,
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.num_ports = 2,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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[netmos_9xx5_combo] = {
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.flags = FL_BASE0 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[netmos_9855] = {
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.flags = FL_BASE2 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[netmos_9855_2p] = {
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.flags = FL_BASE4 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[netmos_9900] = { /* n/t */
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.flags = FL_BASE0 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[netmos_9900_2p] = { /* parallel only */ /* n/t */
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.flags = FL_BASE0,
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.num_ports = 0,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[netmos_99xx_1p] = { /* parallel only */ /* n/t */
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.flags = FL_BASE0,
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.num_ports = 0,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[avlab_1s1p] = { /* n/t */
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.flags = FL_BASE0 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[avlab_1s2p] = { /* n/t */
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.flags = FL_BASE0 | FL_BASE_BARS,
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.num_ports = 1,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[avlab_2s1p] = { /* n/t */
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.flags = FL_BASE0 | FL_BASE_BARS,
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.num_ports = 2,
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.base_baud = 115200,
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.uart_offset = 8,
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},
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[siig_1s1p_10x] = {
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.flags = FL_BASE2,
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.num_ports = 1,
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.base_baud = 460800,
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.uart_offset = 8,
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},
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[siig_2s1p_10x] = {
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.flags = FL_BASE2,
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.num_ports = 1,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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[siig_2p1s_20x] = {
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.flags = FL_BASE0,
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.num_ports = 1,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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[siig_1s1p_20x] = {
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.flags = FL_BASE0,
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.num_ports = 1,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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[siig_2s1p_20x] = {
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.flags = FL_BASE0,
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.num_ports = 1,
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.base_baud = 921600,
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.uart_offset = 8,
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},
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};
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struct parport_serial_private {
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struct serial_private *serial;
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int num_par;
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struct parport *port[PARPORT_MAX];
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struct parport_pc_pci par;
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};
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/* Register the serial port(s) of a PCI card. */
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static int __devinit serial_register (struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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struct parport_serial_private *priv = pci_get_drvdata (dev);
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struct pciserial_board *board;
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struct serial_private *serial;
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board = &pci_parport_serial_boards[id->driver_data];
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if (board->num_ports == 0)
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return 0;
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serial = pciserial_init_ports(dev, board);
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if (IS_ERR(serial))
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return PTR_ERR(serial);
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priv->serial = serial;
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return 0;
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}
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/* Register the parallel port(s) of a PCI card. */
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static int __devinit parport_register (struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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struct parport_pc_pci *card;
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struct parport_serial_private *priv = pci_get_drvdata (dev);
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int n, success = 0;
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priv->par = cards[id->driver_data];
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card = &priv->par;
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if (card->preinit_hook &&
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card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
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return -ENODEV;
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for (n = 0; n < card->numports; n++) {
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struct parport *port;
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int lo = card->addr[n].lo;
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int hi = card->addr[n].hi;
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unsigned long io_lo, io_hi;
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int irq;
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if (priv->num_par == ARRAY_SIZE (priv->port)) {
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printk (KERN_WARNING
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"parport_serial: %s: only %zu parallel ports "
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"supported (%d reported)\n", pci_name (dev),
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ARRAY_SIZE(priv->port), card->numports);
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break;
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}
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io_lo = pci_resource_start (dev, lo);
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io_hi = 0;
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if ((hi >= 0) && (hi <= 6))
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io_hi = pci_resource_start (dev, hi);
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else if (hi > 6)
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io_lo += hi; /* Reinterpret the meaning of
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"hi" as an offset (see SYBA
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def.) */
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/* TODO: test if sharing interrupts works */
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irq = dev->irq;
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if (irq == IRQ_NONE) {
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dev_dbg(&dev->dev,
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"PCI parallel port detected: I/O at %#lx(%#lx)\n",
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io_lo, io_hi);
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irq = PARPORT_IRQ_NONE;
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} else {
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dev_dbg(&dev->dev,
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"PCI parallel port detected: I/O at %#lx(%#lx), IRQ %d\n",
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io_lo, io_hi, irq);
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}
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port = parport_pc_probe_port (io_lo, io_hi, irq,
|
|
PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED);
|
|
if (port) {
|
|
priv->port[priv->num_par++] = port;
|
|
success = 1;
|
|
}
|
|
}
|
|
|
|
if (card->postinit_hook)
|
|
card->postinit_hook (dev, card, !success);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct parport_serial_private *priv;
|
|
int err;
|
|
|
|
priv = kzalloc (sizeof *priv, GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
pci_set_drvdata (dev, priv);
|
|
|
|
err = pci_enable_device (dev);
|
|
if (err) {
|
|
pci_set_drvdata (dev, NULL);
|
|
kfree (priv);
|
|
return err;
|
|
}
|
|
|
|
if (parport_register (dev, id)) {
|
|
pci_set_drvdata (dev, NULL);
|
|
kfree (priv);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (serial_register (dev, id)) {
|
|
int i;
|
|
for (i = 0; i < priv->num_par; i++)
|
|
parport_pc_unregister_port (priv->port[i]);
|
|
pci_set_drvdata (dev, NULL);
|
|
kfree (priv);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
|
|
{
|
|
struct parport_serial_private *priv = pci_get_drvdata (dev);
|
|
int i;
|
|
|
|
pci_set_drvdata(dev, NULL);
|
|
|
|
// Serial ports
|
|
if (priv->serial)
|
|
pciserial_remove_ports(priv->serial);
|
|
|
|
// Parallel ports
|
|
for (i = 0; i < priv->num_par; i++)
|
|
parport_pc_unregister_port (priv->port[i]);
|
|
|
|
kfree (priv);
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state)
|
|
{
|
|
struct parport_serial_private *priv = pci_get_drvdata(dev);
|
|
|
|
if (priv->serial)
|
|
pciserial_suspend_ports(priv->serial);
|
|
|
|
/* FIXME: What about parport? */
|
|
|
|
pci_save_state(dev);
|
|
pci_set_power_state(dev, pci_choose_state(dev, state));
|
|
return 0;
|
|
}
|
|
|
|
static int parport_serial_pci_resume(struct pci_dev *dev)
|
|
{
|
|
struct parport_serial_private *priv = pci_get_drvdata(dev);
|
|
int err;
|
|
|
|
pci_set_power_state(dev, PCI_D0);
|
|
pci_restore_state(dev);
|
|
|
|
/*
|
|
* The device may have been disabled. Re-enable it.
|
|
*/
|
|
err = pci_enable_device(dev);
|
|
if (err) {
|
|
printk(KERN_ERR "parport_serial: %s: error enabling "
|
|
"device for resume (%d)\n", pci_name(dev), err);
|
|
return err;
|
|
}
|
|
|
|
if (priv->serial)
|
|
pciserial_resume_ports(priv->serial);
|
|
|
|
/* FIXME: What about parport? */
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static struct pci_driver parport_serial_pci_driver = {
|
|
.name = "parport_serial",
|
|
.id_table = parport_serial_pci_tbl,
|
|
.probe = parport_serial_pci_probe,
|
|
.remove = __devexit_p(parport_serial_pci_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = parport_serial_pci_suspend,
|
|
.resume = parport_serial_pci_resume,
|
|
#endif
|
|
};
|
|
|
|
|
|
static int __init parport_serial_init (void)
|
|
{
|
|
return pci_register_driver (&parport_serial_pci_driver);
|
|
}
|
|
|
|
static void __exit parport_serial_exit (void)
|
|
{
|
|
pci_unregister_driver (&parport_serial_pci_driver);
|
|
return;
|
|
}
|
|
|
|
MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
|
|
MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(parport_serial_init);
|
|
module_exit(parport_serial_exit);
|